Analysis

  • max time kernel
    174s
  • max time network
    186s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 10:14

General

  • Target

    b49430c11200d7e874a2575399c7975209733533c6a1e13f73247135cd5dac88.exe

  • Size

    602KB

  • MD5

    8b4f8c33fc5068f93c675fed75ef606c

  • SHA1

    26edff5203cc98f309d670082a24d73c995130ae

  • SHA256

    b49430c11200d7e874a2575399c7975209733533c6a1e13f73247135cd5dac88

  • SHA512

    a5be5924553a8e6b455aa71c38baa97eea2727f9a6de8f109b28115f3b9bbd72a19b5c8ec5edd858e9d53fa9ec2abb7976a0890215cd63d8e331c3f249e92cb6

  • SSDEEP

    12288:XIny5DYT2uHIxMENzo1wMPNLFtWxB7OQxzr+l5:/UT24IxZk+4FWMQg

Score
8/10

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 14 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops file in System32 directory 5 IoCs
  • Drops file in Program Files directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Modifies data under HKEY_USERS 1 IoCs
  • Runs net.exe
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b49430c11200d7e874a2575399c7975209733533c6a1e13f73247135cd5dac88.exe
    "C:\Users\Admin\AppData\Local\Temp\b49430c11200d7e874a2575399c7975209733533c6a1e13f73247135cd5dac88.exe"
    1⤵
    • Drops file in Drivers directory
    • Loads dropped DLL
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:2152
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3616
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:516
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3452
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:316
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3408
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3844
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1596
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:2680
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:4884
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1400
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:4352
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Modifies data under HKEY_USERS
            • Suspicious use of AdjustPrivilegeToken
            PID:1948
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:4436

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsp1F71.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsp1F71.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsp1F71.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsp1F71.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsp1F71.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsp1F71.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsp1F71.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsp1F71.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsp1F71.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            f3e4e2730063116806bb5de8ea293079

            SHA1

            cba85494736a0e2c1371b805d08f258e85fcbf25

            SHA256

            77269d17d063da11b18cb45fa0710957a7c22ddb18adc13083b4852736d1e847

            SHA512

            148dcd31389ab49a28ccc27f0de79feaa5c6236e33518c84e4cf4824e90f46ab6f64c89a973d4985c68add1caa5b869a286e041d6ec41afdb1e620b9a20e0ffa

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            f3e4e2730063116806bb5de8ea293079

            SHA1

            cba85494736a0e2c1371b805d08f258e85fcbf25

            SHA256

            77269d17d063da11b18cb45fa0710957a7c22ddb18adc13083b4852736d1e847

            SHA512

            148dcd31389ab49a28ccc27f0de79feaa5c6236e33518c84e4cf4824e90f46ab6f64c89a973d4985c68add1caa5b869a286e041d6ec41afdb1e620b9a20e0ffa

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            f3e4e2730063116806bb5de8ea293079

            SHA1

            cba85494736a0e2c1371b805d08f258e85fcbf25

            SHA256

            77269d17d063da11b18cb45fa0710957a7c22ddb18adc13083b4852736d1e847

            SHA512

            148dcd31389ab49a28ccc27f0de79feaa5c6236e33518c84e4cf4824e90f46ab6f64c89a973d4985c68add1caa5b869a286e041d6ec41afdb1e620b9a20e0ffa

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            f3e4e2730063116806bb5de8ea293079

            SHA1

            cba85494736a0e2c1371b805d08f258e85fcbf25

            SHA256

            77269d17d063da11b18cb45fa0710957a7c22ddb18adc13083b4852736d1e847

            SHA512

            148dcd31389ab49a28ccc27f0de79feaa5c6236e33518c84e4cf4824e90f46ab6f64c89a973d4985c68add1caa5b869a286e041d6ec41afdb1e620b9a20e0ffa

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            16ac3c123d2af5a518d3279fba570b9e

            SHA1

            6bcdce2f9469d78126afd39de1bad85dc67840ff

            SHA256

            6763730944bfb1d16cd23475b0a3651728e6a18aed29ab068bc045e4b54e2639

            SHA512

            d5d2cd6ba67ed15e439b36c31624ef2f5c4932d20fe5fca5be0ccad4e719feb9d04d6c8b2a4e0f2f8a03ccb787e5af377fbddd87f4cebfd7c3fbbc3061ac138b

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            16ac3c123d2af5a518d3279fba570b9e

            SHA1

            6bcdce2f9469d78126afd39de1bad85dc67840ff

            SHA256

            6763730944bfb1d16cd23475b0a3651728e6a18aed29ab068bc045e4b54e2639

            SHA512

            d5d2cd6ba67ed15e439b36c31624ef2f5c4932d20fe5fca5be0ccad4e719feb9d04d6c8b2a4e0f2f8a03ccb787e5af377fbddd87f4cebfd7c3fbbc3061ac138b

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            16ac3c123d2af5a518d3279fba570b9e

            SHA1

            6bcdce2f9469d78126afd39de1bad85dc67840ff

            SHA256

            6763730944bfb1d16cd23475b0a3651728e6a18aed29ab068bc045e4b54e2639

            SHA512

            d5d2cd6ba67ed15e439b36c31624ef2f5c4932d20fe5fca5be0ccad4e719feb9d04d6c8b2a4e0f2f8a03ccb787e5af377fbddd87f4cebfd7c3fbbc3061ac138b

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            e476e5332a0109805530d976d37cf301

            SHA1

            0ec20c05699da7a6f7d576e86a4b90495bd34443

            SHA256

            2e5798b7b66ac1a3459f5b4c422708f8e21746f420a25b70f067b45e33c837f2

            SHA512

            a7d38f8d9728965db601e5b60672b858654c81ae2b3371c83bc1e61480a8768b28d75871dc7dafee4da25b5c70c96765e42f623b8508ba579f2995ae56c2a79b

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            e476e5332a0109805530d976d37cf301

            SHA1

            0ec20c05699da7a6f7d576e86a4b90495bd34443

            SHA256

            2e5798b7b66ac1a3459f5b4c422708f8e21746f420a25b70f067b45e33c837f2

            SHA512

            a7d38f8d9728965db601e5b60672b858654c81ae2b3371c83bc1e61480a8768b28d75871dc7dafee4da25b5c70c96765e42f623b8508ba579f2995ae56c2a79b

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            f16f66ae7a783cf344a18fd3a33056e5

            SHA1

            eb9e8dad06a2d56dae2aa3cced1c82929ff9fc10

            SHA256

            9e45ec948787f4ecfdcf574f2d094282aa32d4947a7afa91fad43245d3e98351

            SHA512

            be65ad755756e995a865b4ff811e0e186512655cf20cc18e2b999f7b1fbdc1c9e1ec7bd84ca568001eff6ac7030911501c88904d449f5a76e3520e159e2f3f78

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            f16f66ae7a783cf344a18fd3a33056e5

            SHA1

            eb9e8dad06a2d56dae2aa3cced1c82929ff9fc10

            SHA256

            9e45ec948787f4ecfdcf574f2d094282aa32d4947a7afa91fad43245d3e98351

            SHA512

            be65ad755756e995a865b4ff811e0e186512655cf20cc18e2b999f7b1fbdc1c9e1ec7bd84ca568001eff6ac7030911501c88904d449f5a76e3520e159e2f3f78

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            f16f66ae7a783cf344a18fd3a33056e5

            SHA1

            eb9e8dad06a2d56dae2aa3cced1c82929ff9fc10

            SHA256

            9e45ec948787f4ecfdcf574f2d094282aa32d4947a7afa91fad43245d3e98351

            SHA512

            be65ad755756e995a865b4ff811e0e186512655cf20cc18e2b999f7b1fbdc1c9e1ec7bd84ca568001eff6ac7030911501c88904d449f5a76e3520e159e2f3f78

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            09dab34b29e612c660588891918afcaf

            SHA1

            1da897c550765acb55c7bfcc3c368af976bb8980

            SHA256

            f33a9f850cc40263e3f40ead9f776def55059df8cfe8e734cfc30e2e7037dc83

            SHA512

            f160fe46947b39d4ac133ee5ee62a7ad54a624fc1d81490b31c46f0104e3756976c510364589e0f2d99f96a178f4cf84fb177a851ae2aac0e5a51788388884af

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            09dab34b29e612c660588891918afcaf

            SHA1

            1da897c550765acb55c7bfcc3c368af976bb8980

            SHA256

            f33a9f850cc40263e3f40ead9f776def55059df8cfe8e734cfc30e2e7037dc83

            SHA512

            f160fe46947b39d4ac133ee5ee62a7ad54a624fc1d81490b31c46f0104e3756976c510364589e0f2d99f96a178f4cf84fb177a851ae2aac0e5a51788388884af

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            09dab34b29e612c660588891918afcaf

            SHA1

            1da897c550765acb55c7bfcc3c368af976bb8980

            SHA256

            f33a9f850cc40263e3f40ead9f776def55059df8cfe8e734cfc30e2e7037dc83

            SHA512

            f160fe46947b39d4ac133ee5ee62a7ad54a624fc1d81490b31c46f0104e3756976c510364589e0f2d99f96a178f4cf84fb177a851ae2aac0e5a51788388884af

          • memory/316-141-0x0000000000000000-mapping.dmp

          • memory/516-137-0x0000000000000000-mapping.dmp

          • memory/1400-165-0x0000000000000000-mapping.dmp

          • memory/1596-153-0x0000000000000000-mapping.dmp

          • memory/2152-132-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/2152-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/2680-158-0x0000000000000000-mapping.dmp

          • memory/3408-142-0x0000000000000000-mapping.dmp

          • memory/3452-140-0x0000000000000000-mapping.dmp

          • memory/3616-136-0x0000000000000000-mapping.dmp

          • memory/3844-147-0x0000000000000000-mapping.dmp

          • memory/4352-166-0x0000000000000000-mapping.dmp

          • memory/4884-159-0x0000000000000000-mapping.dmp